There would have been an update yesterday but so much work was put in there was no time, straight off to sleeps. First task was drilling out the re-purposed monarch X2 to 3.1mm, tight clearance for M3.
Then of course countersunk to get the screws flush.Because there were features on both sides of our block the acrylic will be tapped instead of the copper.
Fitment check looking OP.
The positions for the coldplate were marked accurately with 2.5mm end mill but not taken to full depth as the collet wouldn't fit inside the slot so they were all drilled after.
M3 tapping for the motherboard and M.2 coldplate taken care of.
Because the plate was 30mm with 5mm lids in both sides that left enough thickness to a fill port along the top edge. The inside panel was added to mark it out and the lids on either side to strengthen the part while drilling. First 5mm, then 8mm...
...finaly 11.7mm.
Small CS added to help the thread lead in nicely.
And tapped to 1/4" BSPP
Quickly tapped the other 100 or so #6-32 UNC holes and 6 1/4" and it's ready for the nice clean work!
Nitrile rubber o-ring cord all cut and bonded.
Each o-ring was greased and fitted, mainly to get that really nice glossy look through the clear acrylic and help it all slide together.
Our modified Monarch part going in with the original o-ring and new M3x12mm stainless screws.
And just the same with the Supremacy coldplate. We didn't use the internal EVO jet plate parts instead opting for a much simpler design which left more material behind to screw the lids onto the opposite side.
Pt.2 and 3 following on as soon as we can upload them